Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed Quark images

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On 24/03/17 17:34, Jan Kiszka wrote:
This addresses the review feedback provided on round 1, specifically
- refactored queue to keep the Quark mess in
- only check for CSH on Quark CPUs
- added some smaller cleanups of the capsule loader
- documented capsule header / linked to original code

See last patch for the background of the series.

The series has been tested on the Galileo Gen2, to exclude regressions,
with a firmware.cap with AND without security header and the SIMATIC
IOT2040 which requires the header because of its mandatory secure boot.

Jan

Jan Kiszka (7):
  efi/capsule: Fix return code on failing kmap/vmap
  efi/capsule: Remove pr_debug on ENOMEM or EFAULT
  efi/capsule: Clean up pr_err/info messages
  efi/capsule: Adjust return type of efi_capsule_setup_info
  efi/capsule: Prepare for loading images with security header
  efi/capsule: Factor out overloadable efi_capsule_identify_image
  efi/capsule: Add support for Quark security header

 arch/x86/platform/efi/quirks.c        |  95 ++++++++++++++++++++++++
 drivers/firmware/efi/capsule-loader.c | 136 +++++++++++++++++++---------------
 drivers/firmware/efi/capsule.c        |  21 +++++-
 include/linux/efi.h                   |  19 +++++
 4 files changed, 208 insertions(+), 63 deletions(-)


BTW,

Thanks for taking the time to remove the __func__ stuff all over the place.

I'll try to test this out for you. I found that the current BSP Intel is releasing has some sort of GUI that downloads an image to a board (which completely fails for me on the Galileo I have)... not sure if you have different results with the stuff from the Intel website but it's non-functional for me :(

I'd like to suggest to you adding something to Documentation describing how to load and trigger a capsule update. For example on Quark you need to use the EFI reset method to cause capsule update to work.

Could you add a patch to your series for Documentation detailing:

1. Entry criteria (needing to boot in EFI reset mode)
1. Description of loading a capsule
3. Description of triggering the update (reboot)
4. Verifying the update succeeded (actually is this possible right now?)

---
bod
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